<template>
    <div>
      <!-- 面包屑导航 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
      </el-breadcrumb>
      <el-card>

        <!-- 搜索框加添加按钮 -->
        <el-row :gutter='20'>
          <el-col :span='8'>
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getGoodsList'>
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
          </el-col>
          <el-col :span='4'>
            <el-button type="primary" @click="addGoods">添加商品</el-button>
          </el-col>
        </el-row>

        <!-- 商品列表数据表格 -->
        <el-table :data="goodsList" style="width: 100%"  stripe>
          <el-table-column type="index">
          </el-table-column>
          <el-table-column prop="goods_name" label="商品名称">
          </el-table-column>
          <el-table-column prop="goods_price" label="商品价格（元）" width="95px">
          </el-table-column>
          <el-table-column prop="goods_weight" label="商品重量" width="70px">
          </el-table-column>
          <el-table-column prop="add_time" label="创建时间" width="170px">
            <template v-slot={row}>
              {{row.add_time | dateFormat}}
            </template>
          </el-table-column>
          <el-table-column label="操作" width="130px">
            <template v-slot={row}>
              <el-button type="primary" icon="el-icon-edit" circle></el-button>
              <el-button type="danger" icon="el-icon-delete" circle @click="removeGoodsById(row.goods_id)"></el-button>
            </template>
          </el-table-column>
        </el-table>
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 5, 10, 30]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background></el-pagination>
      </el-card>
    </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      goodsList: [],
      total: 0
    }
  },
  created () {
    // 获取商品列表数据
    this.getGoodsList()
  },
  mounted () {

  },
  methods: {
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取列表失败！')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(res)
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange (newNum) {
      this.queryInfo.pagenum = newNum
      this.getGoodsList()
    },
    // 删除商品按钮
    async removeGoodsById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err) // catch接收错误信息
      // 如果用户点击的是确定返回的是字符串confirm
      // 如果用户点击取消返回的是cancel
      // console.log(confirmResult);
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // 调用接口删除
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败')
      }
      this.$message.success('删除商品成功')
      this.getGoodsList()
      console.log(res)
    },
    // 添加商品，跳转到添加商品页面
    addGoods () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped lang="less">

</style>
